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Finding the Third Proportional to 484.03 and 979.31

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Solution

The third proportional to 484.03 and 979.31 is: 1,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.03 : 979.31 = 979.31 : x
  2. Step 2: Convert to fraction form
    484.03/979.31 = 979.31/x
  3. Step 3: Cross multiply
    484.03x = 979.31 × 979.31
  4. Step 4: Simplify right side
    484.03x = 959,052.97
  5. Step 5: Solve for x
    x = 959,052.97/484.03
  6. Step 6: Final answer
    x = 1,981.39

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.